The Sony Cyber-shot DSC-RX100 IV Digital Camera is a versatile and advanced point-and-shoot featuring a large 20.1-megapixel 1" Exmor RS CMOS sensor to produce high-resolution still imagery and 4K video. This sensor's construction utilizes a stacked backside-illuminated design to improve clarity and image quality when working in dimly-lit conditions as well as to increase its sensitivity to a native ISO 12,800.